Tetrahydropyran
Tetrahydropyran
CAS: 142-68-7
Molecular Formula: C5H10O
Tetrahydropyran - Names and Identifiers
| Name | Tetrahydropyran |
| Synonyms | THP UMOD Etrahydropyran OXACYCLOHEXANE TETRAHYDROPYRAN Tetrahydropyran Uromodulin human 4-tetrahydropyran tetrahydro-2H-pyran PENTAMETHYLENE OXIDE Pentamethylene oxide 2H-pyran,tetrahydro- |
| CAS | 142-68-7 |
| EINECS | 205-552-8 |
| InChI | InChI=1/C5H10O/c1-2-4-6-5-3-1/h1-5H2 |
| InChIKey | DHXVGJBLRPWPCS-UHFFFAOYSA-N |
Tetrahydropyran - Physico-chemical Properties
| Molecular Formula | C5H10O |
| Molar Mass | 86.13 |
| Density | 0.881 g/mL at 25 °C (lit.) |
| Melting Point | -45 °C (lit.) |
| Boling Point | 88 °C (lit.) |
| Flash Point | 4°F |
| Water Solubility | 80 g/L (25 ºC) |
| Solubility | >80.2g/l |
| Vapor Presure | 70.1mmHg at 25°C |
| Vapor Density | 3 (vs air) |
| Appearance | Liquid |
| Color | Clear colorless |
| Merck | 14,9217 |
| BRN | 102436 |
| Storage Condition | Store below +30°C. |
| Refractive Index | n20/D 1.42(lit.) |
| Physical and Chemical Properties | Colorless liquid. The boiling point was 88 °c. |
| Use | Used as a pharmaceutical Intermediate |
Tetrahydropyran - Risk and Safety
| Risk Codes | R11 - Highly Flammable R36/37/38 - Irritating to eyes, respiratory system and skin. R9 - Explosive when mixed with combustible material R19 - May form explosive peroxides R52/53 - Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R22 - Harmful if swallowed |
| Safety Description | S9 - Keep container in a well-ventilated place. S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S33 - Take precautionary measures against static discharges. S36 - Wear suitable protective clothing. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 1993 3/PG 2 |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29321100 |
| Hazard Class | 3 |
| Packing Group | II |
Tetrahydropyran - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Product description | tetrahydropyran (English: tetrahydro Pyran), is a six-membered oxygen-containing saturated heterocyclic, colorless flammable liquid at room temperature, a special odor. Miscible in water, ethanol, ether, and other organic solvents. The formation of explosive organic peroxides under light. Prepared by hydrogenation of dihydropyran in the presence of Raney nickel or reaction of 1, 5-dibromopentane with water under the action of zinc oxide. It is mainly used as a solvent for nitro spray paint, rubber and Grignard reaction. Tetrahydropyran ring-containing substances are present in many natural products. It is the structural core of pyranose. The molecule of marine biological toxin tail fish toxin (Maitotoxin) contains 28 Tetrahydropyran rings. |
| Use | pharmaceutical intermediate, used for 1, 5-dichloropentane, and then can synthesize heptanediamine, heptanedioic acid, and for the production of synthetic fiber wait. used as pharmaceutical intermediates |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 21:11:58
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